Introduction of daily maintenance and maintenance of oil-free air compressor

The water-lubricated oil-free air compressor has the characteristics of energy saving, environmental protection, stability and durability. It has been widely used in many industries, and the maintenance and maintenance of oil-free air compressors are also concerned by users.

Correct daily maintenance and use can extend the service life of the oil-free air compressor and avoid or reduce the occurrence of failures.

Accurate use environment:

1) The normal use environment of the air compressor is 5 ℃ -40 ℃, and shall not be placed in an unobstructed place. Do not work in a humid and dark place. Work in places where flammable and explosive liquid gases are stored and dusty and volatile gases are stored strictly.

2) Keep the environment tidy and avoid unnecessary accidents.

3) Discharge the sewage in the gas storage tank in time, and it is recommended that it should be discharged at least once a week.

4) The filter should be cleaned in time according to the usage, and the accessories and cables should be checked on schedule, and the damaged ones should be replaced immediately.

5) The machine should be kept clean and dry, so as to fully display its function.

6) When the air compressor is not in use, the air in the air storage tank should be released, the sewage in the air storage tank should be drained, and stored in a dry environment.

7) Pay attention to the conformity between the power supply voltage and the nameplate of the air compressor.

8) When the power supply voltage is higher than the combined voltage of the air compressor, it may cause personal accident and damage the air compressor. When the power supply voltage is lower than the combined voltage of the air compressor, it will cause poor starting and even damage the motor.

9) Be sure to operate within the pressure range set at the factory (generally, the maximum factory pressure is set to 8 Bar, and the safety relief is 8.8Bar), otherwise there will be a danger of explosion of the gas storage tank. (Need special pressure, please contact the manufacturer to customize).

10) When leaving work and not in use, form the habit of blocking the power supply in time.

11) When moving the air compressor or connecting other equipment, it is necessary to block the power supply.

12) Work in strict accordance with the calibrated voltage, frequency and rated load on the air compressor, the effect will be better and safer. Water lubricated oil-free air compressor itself does not contain any oily substances, do not add any lubricating oil and oily substances.

13) It is recommended that users choose products from manufacturers that have the technical advantage like Denair. At the same time, when choosing, manufacturers should be required to provide as detailed technical parameters as possible. Those manufacturers with incomplete parameter identification lack the detection of certain technical items, and they should be careful when choosing. The choice before buying. Choose good quality, suitable for the equipment requirements of the use of the trouble will be much less.

Common fault description: air compressor performance work, but the noise is significantly larger than the original. This phenomenon is to check whether the running current is normal after eliminating whether the accessories on the machine are loose. If it is normal, the machine has been in use for some years. The oil-free air compressor should be placed in a dusty place as far as possible. After the power supply is unplugged on schedule, the dust on the surface and in the two fan blades should be blown off with high-pressure air. The noise is too large because the bearings of the four motors are worn by dust, and the corresponding cups will also be affected. Replace tools and accessories that require a dedicated oil-free air compressor. Every time the air compressor works, the air pressure of the air storage tank should be put into zero air pressure before starting the work. Otherwise, it cannot be started. When the power is turned on, you can see that the nose is turning very slowly and there is a buzzing sound. The current is also large. This is because the one-way valve is blocked, and one end of the air outlet pipe (or high-pressure pipe) is connected to the other end of the air storage tank, with three outlets. Its function is to allow the gas from the nose to enter the tank and the gas from the tank cannot come out. Inside it is a spring and a film. If dirt sticks to the film, it will cause reverse air leakage, then the second start of the machine head will be pressed by high pressure and unable to start. The solution is to use the wrench to open the valve cover behind the one-way valve, please wash it back as it is.

The air compressor works intermittently and the air supply is insufficient.

The cause of this failure is:

a, insufficient voltage. There is a buzzing sound at the start. If the operating current is too large at this time. The minimum working voltage of the oil-free head is 200V, below which the head is difficult to start, and frequent starting will cause the head temperature to rise. Ultimate Circuit Protection Shutdown. Until the temperature drops and turns on again. For areas with frequent voltage fluctuations, it is recommended to install an automatic voltage regulator.

B, start capacitor leakage. When leakage occurs, the compressor head can still be started, but the speed is slow and the current is large, because the current is large, causing the head to have a fever fast, and the head will be protected and shut down soon. This topic can be changed to a new one, but it should be noted that UF numbers should be the same, too large or too small is not good. The air compressor keeps working, but the air supply is still insufficient. The air compressor works to stop the air tank when it is under pressure. Listen to the external pipes of the air compressor, the air supply pipe of the air compressor on the air tank, and the one-way valve. Safety valve, pressure switch and other joints are leaking sound. If the above problems are excluded, it may be that the head cup is worn or exceeds the rated flow rate, and the machine is overloaded. As for the damage of the leather bowl, you have to change the leather bowl. Generally, the life of the leather bowl is about 3 years.